package zhoumo;

import java.util.ArrayList;
import java.util.Collection;

public class CollectionDemo {
    public static void main(String[] args) {
        Collection c=new ArrayList();
        c.add(new Point(1,2));
        c.add(new Point(1,2));
        c.add(new Point(3,4));
        c.add(new Point(5,6));
        c.add(new Point(7,8));
        c.add(new Point(9,0));
        System.out.println("c = " + c);
        Point p=new Point(1,2);
        boolean contains=c.contains(p);
        System.out.println("是否包含"+contains);
        c.remove(p);
        System.out.println("c = " + c);

        Collection cc=new ArrayList();
        Point pp=new Point(1,2);
        cc.add(pp);
        System.out.println("pp = " + pp);
        System.out.println("cc = " + cc);

        pp.setX(100);
           
    }
}
